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Observation of Orbitally Excited Bs Mesons

CollaborationWith : Clark, Allan Geoffrey / Hamilton, Andrew / Lefevre, Régis / Sfyrla, Anna / Shreyber, Irina / Vallecorsa, Sofia / Wu, Xin
Published in Physical Review Letters. 2008, vol. 100, no. 08, p. 082001
Abstract We report the observation of two narrow resonances consistent with states of orbitally excited (L=1) Bs mesons using 1  fb−1 of pp collisions at s√=1.96  TeV collected with the Collider Detector at Fermilab II detector at the Fermilab Tevatron. We use two-body decays into K− and B+ mesons reconstructed as B+→J/ψK+, J/ψ→μ+μ− or B+→D0π+, D0→K+π−. We deduce the masses of the two states to be m(Bs1)=5829.4±0.7  MeV/c2 and m(B∗s2)=5839.6±0.7  MeV/c2.
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CDF COLLABORATION. Observation of Orbitally Excited Bs Mesons. In: Physical Review Letters, 2008, vol. 100, n° 08, p. 082001. https://archive-ouverte.unige.ch/unige:38490

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Deposited on : 2014-07-07

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